Calendar clock



Sept. 10, 1935. Y c. CANEPA 2,014,168

' I CALENDAR CLOCK Filed July 18, 1930 2 Sheets-Sheet 1 40 39 amt C/I/Z flbp/Ie/ Can @pa;

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C. CANEPA CALENDAR-CLOCK Filed Jil ly 18, 1930 2 sneets-shet 2 am I Patented Sept. 10, 1935 UNITED STATES PATENT OFFICE 3 Claims.

This invention relates to clocks of the kind adapted to indicate the date and day of the month in addition to the minute and the hour of the day.

The objects of the invention are to produce a clock provided with a mechanism of improved construction for transmitting motion from the clock mechanism, without the usual hour wheel, to the calendar mechanism; also to provide a mechanism of improved construction for transferring motion from the minute wheel to the hour wheel of the clock; also to provide a mechanism of improved construction for transferring motion from the hour wheel to the day wheel of the clock; also to provide a mechanism of improved construction for moving the day Wheel to its starting position on the first day of each month; also to provide a dial with improved construction for indicating the date of the month and a dial-ring covering the edge of the dial and adjustable by manual movement for indicating the day of the week; also to provide means for the manual adjustment of a card for indicating the name of the month and of a size suflicient to cover a portion of the dial and dial-ring for indicating the number of days in the month and the names thereof; also to improve the construction of devices of this kind in other respects hereinafter specified.

In the accompanying drawings:

Figure 1 is the face view of the dial of a calendar clock embodying the invention, encased in a suitable casing, showing the month card and clip for holding the card in position.

Figure 2 is a top plan view of the clock showing the casing, and the dial-ring pin for the correct placement of the dial-ring of the clock.

Figure 3 is a front elevation of the clock mechanism embodying the invention as shown in the supporting frame with the dial removed therefrom, and the dial-ring and the dial-ring pin.

Figure 4 is a vertical sectional view of the clock mechanism, as shown in the casing and in the supporting frame, and showing the dial and the minute and hour and day indicators in section.

Figure 5 is a perspective view of the supporting frame of the mechanism of the clock, showing slots for holding the dial-ring in position; also the dial-ring, showing the fingers for holding it in position, the parts being shown in separated relation.

The calendar mechanism of the clock may be applied to clock mechanism of any suitable construction, without the usual hour wheel, and as shown in the drawings the usual frame I is provided on which the gear train 2 of the clock mechanism is suitably mounted. The gear train 2 may be actuated by any suitable means, such for example as a spring 3 secured on a winding shaft t having the usual key 5 for winding the clock. The winding mechanism is provided with 5 the usual ratchet wheel 6 and pawl l which permit the winding shaft 4 to be turned in a direction for winding without interfering with the gear train 2. The clock mechanism or gear train 2 is connected with a minute hand I3 adapted to 10 move over a minute dial l i by means of a centershaft H].

The minute wheel 8 which is rigidly mounted on the center-shaft ill and connected with the gear train 2 of the clock mechanism, is actuated by the spring 3 on the winding shaft 4, the usual key 5 also being provided. In the construction shown, the minute, hour, and date and day mechanism derive their movement from the gear train 2 on which the minute wheel 8 is rigidly mounted to rotate.

The minute wheel 8 meshes with the actuating mechanism of the hour wheel M. The hour wheel It has twenty-four teeth I 5 and a pinion I6 having one tooth H and is journaled on a shaft i3 which is secured on the frame I of the clock mechanism in parallelism with the center-shaft it. The hour wheel E i and the minute wheel 3 in the construction shown are so proportioned that the minute wheel 8 will rotate once every hour and the hour wheel l4 having twenty-four teeth 55 will rotate once every twenty-four hours, the tooth ll of the pinion E6 of the hour wheel M actuating once every thirty-five days, a day wheel 24 having thirty-five teeth or projections 25 and journaled on the center-shaft IE1.

In order to accomplish this result the following mechanism is preferably employed:

The minute wheel 8 is rigidly secured on the center-shaft It of the gear train 2 and is provided with one tooth or projection 5 so that each rotation of the minute wheel 8 causes the hour wheel M to advance one step, or, in other words to rotate once about the shaft I8 for every twenty-four revolutions of the minute wheel 3.

The minute wheel 8 revolves once every hour indicating the minutes on the face of the clock by means of a small minute dial H. The minute wheel 8 is moved forward by reason of the actuation of the center-shaft 5E1 through the gear train 2 which is in turn moved forwardly by the spring 3.

The center-shaft it is provided with a key end 52 extending beyond the frame I so that the minute wheel 8, rigidly mounted on the centershaft ii! may be manually moved.

The hour wheel I4 which is rigidly secured on the shaft I8, is provided with twenty-four teeth I5 and a pinion I6 having one tooth 1?. Thus each time the minute wheel 8 is rotated about the center-shaft I0 the tooth 9 thereof engages the hour wheel I4 and consequently is rotated once about the shaft I8 for every twenty-four revolutions of the minute wheel 8.

As before stated, the hour wheel I4, fixed to the shaft 18, revolves once every twenty-four hours, and the said shaft carries an hour hand 2I which indicates the hour on the face of the clock by means of a small hour dial 29. The hour wheel I4 is moved forwardly through the distance of one tooth at a time which is equivalent to one hour caused by the meshing of the tooth 9 against the teeth I5 of the hour wheel I4. The hour wheel I4 causes the day wheel 24 to advance one step each twenty-four hours and since the wheel 24 has thirty-five teeth it is caused to rotate once about the center-shaft ID for every thirty-five revolutions of the hour wheel M. This is caused by the actuation of the tooth H of the pinion I5 of the hour wheel I4 against the teeth of the day wheel 24.

The hour wheel I4 is turned through the dis tance of one tooth at a time by the meshing of the tooth 9 of the minute wheel 8 thereby causing the hour wheel I4 to turn counterclockwise, as seen in Figure 3, through the distance of one tooth. With the completion of this movement the tooth 9 will leave the hour wheel I4 out of engagement until a complete revolution of the minute wheel 8 having the tooth 9 has been accomplished. When the tooth 9 of the minute wheel 8 has meshed twenty-four times with the teeth I5 of the hour wheel I4, a complete revolution of the hour wheel I4 will have been accomplished.

The shaft I8 is provided with a key end 53 extending beyond the frame I so that the hour wheel I4 rigidly mounted on the shaft I 8 may be manually moved counterclockwise, as seen in Figure 3.

One end of a three-fourths way spring 22 is connected with the frame I at 23 tending to hold the hour wheel I4 in position.

A day wheel 24 is journaled on the center-shaft II) of the gear train 2 and is provided with thirtyfive teeth 25 so that the tooth ll of the pinion I6 of the hour wheel I4 when rotated once about the shaft I8 causes the day wheel 24 to advance one step and consequently the day wheel is caused to revolve once about the center-shaft ID for every thirty-five revolutions of the hour wheel I4.

The day wheel 24 and center-shaft if] carry with them a day hand 25 which completely revolves once every thirty-five days, indicating the date and the day of the month on the face of the clock by means of a date dial 21, bearing numbers from one to thirty-five, and a movable dial-ring 2B bearing the names of the days of the week and surrounding the edge of the date dial 2?.

As before stated the day wheel 24 is turned through the distance of one tooth by each mesh ing of the tooth ll of the pinion I6 of the hour wheel I4 therewith. With the completion of this movement the tooth I! will leave the day wheel 24 stationary until a complete revolution of the hour wheel I4 having the tooth H of the pinion I6 has again been accomplished. When the tooth H has meshed thirty-five times with the teeth 25 of the day wheel 24, a complete revolution of the day wheel 24 will have been accomplished.

One end of a three-fourths way spring 29 is connected with the frame I at the point 39 tending to hold the day wheel 24 in position.

The dial-ring 2B bearing the names of the days of the Week covers the edge of the date dial 2! and is retained in place on the casing 31 of the frame I by means of lugs 32, two of which carry inwardly projecting pins 32a. which project into slots 533 formed in the casing SI. An adjustment pin 3% passing through a slot 3? in the outer casing 46, through the third lug 32 and into a third slot 33 permits manual movement of the dialring 28 with respect to the casing 3| through an are determined by the length of the slots 33.

A casing ring 35 secured to the outer frame covers the edge of the dial-ring 28 and has a clip 3% for holding in position a card 31, hearing a name of a month and the year and indications of the moons for that month, and covering a portion of the date dial 2'! and dial-ring 28 to indicate the number of days in the month. The card 37' is manually adjustable in said clip 36.

I claim as my invention:

1. In a calendar, the combination with clockwork mechanism including a center shaft to which one full revolution is imparted in each hour of time, a minute hand secured to and movable with said center shaft, a minute wheel secured to and rotatable with the center shaft and having an actuator lug projecting therefrom, a second shaft rotatably mounted in parallelism with the center shaft and carrying an hour hand and an hour wheel having a notched periphery engaged and ,2

therefrom and movable therewith, said hour wheel also having an actuator lug for engaging and moving the day wheel a step once in each twenty-four hour interval of time.

In a calendar, the combination with clockwork mechanism including a center shaft to which one full revolution is imparted in each hour of time, a minute hand secured to and movable with said center shaft, a minute wheel secured to and rotatable with the center shaft and having an actuator lug projecting therefrom, a second shaft rotatably mounted in parallelism with the center shaft and carrying an hour hand and an hour wheel having a notched periphery engaged and moved a step by the minute wheel lug once each hour, a day wheel having a notched periphery supported on and rotatable about the axis of the center shaft and carrying day hand projecting therefrom and movable therewith, said hour wheel also having an actuator lug for engaging and moving the day wheel a step once in each twenty-four hour interval of time, a dial plate having equidistantly spaced date marked spaces surrounding and adjacent the path of travel of the outer end of the day and equidistantly spaced minute and hour marked spaces surrounding and adjacent the path of travel of the outer ends of the minute and hour hands respectively, and a ring having spaces for registering with the dial date marked spaces and marked with successive day marked sets and shiftable to enable registration of day markings with selected date markings.

In a calendar, the combination with clockwork mechanism including a center shaft to which one full revolution is imparted in each hour of time, a minute hand secured to and movable with said center shaft, a minute wheel secured to and rotatable with the center shaft and having an actuator lug projecting therefrom, a second shaft rotatably mounted in parallelism with the center shaft and carrying an hour hand and an hour wheel having a notched periphery engaged and moved a step by the minute wheel lug once each hour, a day wheel having a notched periphery supported on and rotatable about the axis of the center shaft and carrying a day hand projecting therefrom and movable therewith, said hour wheel also having an actuator lug for engaging and moving the day wheel a step once in each twenty-four hour interval of time, and tensioning means tending to hold the hour and day wheels against movement.

CHRISTOPHER CANEPA. 

